He is familiar _____ this place, because he used to live in the apartment.
—What do you think of the plan to travel to the United States?—_________,it is not practical at all, for none of us are rich enough.
He whispered to his wife _________ he might wake up the sleeping boy.
—Can you tell me something about the history of cheerleading?—Sorry, I know nothing about it _________ I read in the magazine.
Jane was writing a letter _________ the other fans were watching a live television program.
We thought Mary would be elected cheerleader, but to _________ she failed.